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STM32F205REY flash error when add USB device CDC middleware software pack from STM32CUBEIDE

cchan.21
Associate II

HI, all

i use stm32F205REY and it can be flash and work fine before, but when i add usb device CDC code from Middleware software pack in my project, there is an error message when program the memory

it shows, 

"Error: Data mismatch found at address 0x08004A49 (byte = 0x21 instead of 0x61)"

"Error: Download verification failed"

Could anyone help me??

Best Regards

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